JPS604782U

JPS604782U - diaphragm device

Info

Publication number: JPS604782U
Application number: JP9573083U
Authority: JP
Inventors: 健一森; 清和山本; 篠崎　栄
Original assignee: 日本電子機器株式会社; 自動車電機工業株式会社
Priority date: 1983-06-23
Filing date: 1983-06-23
Publication date: 1985-01-14

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図ないし第３図は従来の燃料ポンプにおけるダイヤ
フラム装置を示す図で、第１図は燃料ポンプの全体を示
す断面図、第２図は平面図、第３図はダイヤフラム装置
の部分断面図、第４図ａ、゛ｂは本考案のダイヤフラム
装置に用いるダイヤフラムの一例を示す各々断面図及び
底面図、第５図はダイヤフラム挟着部の部分拡大断面図
である。２３・・・ダイヤフラム、２４・・・高圧室側ケーシン
グ、２５・・・低圧室側ケーシング、２７・・・ビード
、２８・・・リップ、２９・・・溝。Figures 1 to 3 are diagrams showing a diaphragm device in a conventional fuel pump. Figure 1 is a sectional view showing the entire fuel pump, Figure 2 is a plan view, and Figure 3 is a partial sectional view of the diaphragm device. , FIGS. 4a and 4b are a sectional view and a bottom view, respectively, showing an example of a diaphragm used in the diaphragm device of the present invention, and FIG. 5 is a partially enlarged sectional view of the diaphragm clamping portion. 23...Diaphragm, 24...High pressure chamber side casing, 25...Low pressure chamber side casing, 27...Bead, 28...Lip, 29...Groove.

Claims

[Scope of utility model registration request]

A device in which a tire flam is provided between a casing on the high pressure chamber side and a casing on the low pressure chamber side, and an elastic body is provided between the casing on the low pressure chamber side and the diaphragm, in which a bead is provided on the high pressure chamber side of the diaphragm, and the bead A lip is provided on the outer peripheral side of the casing, the bead is fitted into a groove formed in the casing on the high pressure chamber side, and the lip is sandwiched between the casing on the high pressure chamber side and the casing on the low pressure chamber side. shall be. diaphragm device.